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Electromagnetic shielding material containing copper nanofibers and preparation method thereof

A technology of electromagnetic shielding materials and copper nanofibers, applied in shielding materials, magnetic field/electric field shielding, electrical components, etc., can solve the problems of high production cost, high density, poor anti-interference performance, etc., and achieve wide application market prospects, conductive The effect of excellent performance and excellent mechanical properties

Active Publication Date: 2019-01-29
JIANGSU TETRA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electromagnetic waves can cause interference and damage to electronic instruments and equipment, affecting their normal work; they can also cause harm to the human body and seriously damage people's physical and mental health
[0003] At present, the electromagnetic shielding material market is highly competitive. Traditional electromagnetic shielding materials have problems such as poor anti-interference performance, high production cost, narrow use range, high density, and easy corrosion, which will be limited in practical applications.

Method used

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  • Electromagnetic shielding material containing copper nanofibers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An electromagnetic shielding material containing copper nanofibers, made of the following raw materials in parts by weight: 36 parts of high-density polyethylene, 12 parts of D-polylactic acid, 10 parts of copper nanofibers, 4 parts of zinc oxide nanowires, and 3 parts of isocyanate , 0.5 parts of linoleic acid, 0.4 parts of palladium chloride, 4 parts of cobalt ferrite, 1 part of zinc borate, 3 parts of straw powder, 2 parts of p-fluorochlorobenzyl, 1 part of phosphomolybdic acid, 2 parts of ethylene bis stearic acid amide 0.5 part of ethylene-acrylic acid copolymer, 0.2 part of dicumyl peroxide, 0.5 part of titanate coupling agent TMC-201, appropriate amount of concentrated nitric acid, and appropriate amount of acetone.

[0022] The copper nanofibers have a diameter of 80-200nm and a length of 1-5um.

[0023] The preparation method of the above-mentioned electromagnetic shielding material containing copper nanofibers comprises the following steps:

[0024] (1) Add c...

Embodiment 2

[0030] An electromagnetic shielding material containing copper nanofibers, made of the following raw materials in parts by weight: 60 parts of high-density polyethylene, 32 parts of D-polylactic acid, 24 parts of copper nanofibers, 18 parts of zinc oxide nanowires, and 16 parts of isocyanate , 3 parts of linoleic acid, 2 parts of palladium chloride, 11 parts of cobalt ferrite, 19 parts of zinc borate, 13 parts of straw powder, 12 parts of p-fluorochlorobenzyl, 5 parts of phosphomolybdic acid, 8 parts of ethylene bis stearic acid amide 2 parts, 2 parts of ethylene-acrylic acid copolymer, 3 parts of dicumyl peroxide, 2 parts of titanate coupling agent TMC-201, appropriate amount of concentrated nitric acid, appropriate amount of acetone.

[0031] The copper nanofibers have a diameter of 80-200nm and a length of 1-5um.

[0032] The preparation method of the above-mentioned electromagnetic shielding material containing copper nanofibers comprises the following steps:

[0033] (1)...

Embodiment 3

[0039] An electromagnetic shielding material containing copper nanofibers, made of the following raw materials in parts by weight: 48 parts of high-density polyethylene, 22 parts of D-polylactic acid, 17 parts of copper nanofibers, 11 parts of zinc oxide nanowires, and 10 parts of isocyanate , 1.7 parts of linoleic acid, 1.2 parts of palladium chloride, 7 parts of cobalt ferrite, 5 parts of zinc borate, 8 parts of straw powder, 7 parts of p-fluorochlorobenzyl, 3 parts of phosphomolybdic acid, 5 parts of ethylene bis stearic acid amide 1.2 parts of ethylene-acrylic acid copolymer, 1.6 parts of dicumyl peroxide, 1.2 parts of titanate coupling agent TMC-201, an appropriate amount of concentrated nitric acid, and an appropriate amount of acetone.

[0040] The copper nanofibers have a diameter of 80-200nm and a length of 1-5um.

[0041] The preparation method of the above-mentioned electromagnetic shielding material containing copper nanofibers comprises the following steps:

[00...

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Abstract

The invention discloses an electromagnetic shielding material containing copper nano-fibers and a preparation method thereof.The electromagnetic shielding material is prepared from high-density polyethylene, poly-d-lactic acid, copper nano-fibers, zinc oxide nano-wires, isocyanate, linoleic acid, palladium chloride, cobalt ferrite, zinc borate, straw powder, 4-fluorobenzylchloride, phosphomolybdic acid, ethylene bis-stearamide, an ethylene-acrylic acid copolymer, dicumyl peroxide, a titanate coupling agent TMC-201, concentrated nitric acid and acetone by weight.The prepared electromagnetic shielding material is good in magnetic shielding property, excellent in conducting property and mechanical property, strong in anti-interference capability, high in performance-cost ratio, simple in preparation process and applicable to most electromagnetic shielding fields and has broad market application prospects.

Description

technical field [0001] The invention belongs to the technical field of magnetic shielding materials, and in particular relates to an electromagnetic shielding material containing copper nanofibers and a preparation method thereof. Background technique [0002] With the rapid development of science and technology, various electronic instruments and equipment such as radars, satellites, microwave ovens, mobile wireless phones and other high-frequency electromagnetic wave devices and instruments are increasingly used in national defense and civilian fields, and electromagnetic interference caused by electromagnetic waves has become a new social nuisance. Electromagnetic wave pollution has become the fourth largest pollution after noise pollution, air pollution and water pollution. Electromagnetic waves can cause interference and damage to electronic instruments and equipment, affecting their normal work; they can also cause harm to the human body and seriously damage people's ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L67/04C08L97/02C08L23/08C08K13/04C08K7/06C08K3/22C08K5/09C08K3/16C08K3/38C08K3/32C08K5/20C08K5/10H05K9/00
CPCC08L23/06C08L2201/08C08L2205/02C08L2205/035C08L2207/068H05K9/009C08L67/04C08L97/02C08L23/0869C08K13/04C08K7/06C08K2003/2296C08K5/09C08K3/16C08K2003/387C08K3/32C08K5/20C08K5/10
Inventor 姚振红
Owner JIANGSU TETRA NEW MATERIAL TECH